APA (7th ed.) Citation

Ruggles, D. F. c. 2. J. (1984). Megalithic Astronomy: The last five years.

Chicago Style (17th ed.) Citation

Ruggles, D. Fairchild ca. 20./21. Jh. Megalithic Astronomy: The Last Five Years. 1984.

MLA (9th ed.) Citation

Ruggles, D. Fairchild ca. 20./21. Jh. Megalithic Astronomy: The Last Five Years. 1984.

Warning: These citations may not always be 100% accurate.